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Wyeth Holdings LLC
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American Cyanamid Co
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Publication date
Application filed by American Cyanamid CofiledCriticalAmerican Cyanamid Co
Publication of ES302621A1publicationCriticalpatent/ES302621A1/en
C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J75/00—Processes for the preparation of steroids in general
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Chemical & Material Sciences
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Organic Chemistry
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Health & Medical Sciences
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General Health & Medical Sciences
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Steroid Compounds
(AREA)
Abstract
Method of preparation of new steroid compounds, of general formula ** (See formula) ** wherein R is selected from the group consisting of hydrogen and lower alkyl; R1 is selected from the group consisting of hydrogen and lower carbalkoxy; X is selected from the group consisting of -O-, ** (See formula) ** is selected from the group consisting of ** (See formula) ** whose method is characterized by the reaction of a compound of formula ** (See formula) ** wherein R is hydrogen or lower alkyl, with a semicarbazide of formula ** (See formula) ** wherein Y is S or O and R2 is hydrogen, lower alkyl, phenyl or lower alkenyl, in an inert solvent at a temperature of 30 to 150º C. (Machine-translation by Google Translate, not legally binding)
ES0302621A1963-10-041964-07-30Method of preparation of steroid compounds. (Machine-translation by Google Translate, not legally binding)
ExpiredES302621A1
(en)
Procedure for the preparation of compounds of 2- (2º-hydroxy-3º-propenyl-phenyl) -benzotriazol (Machine-translation by Google Translate, not legally binding)